AC Circuits

10 Questions | Total Attempts: 328

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Circuit Quizzes & Trivia

Finding the the correct word being describe in the statement.


Questions and Answers
  • 1. 
    What is the word being describe here?" the number of times the waveform repeats itself within a one second time period".
    • A. 

      Period

    • B. 

      Amplitude

    • C. 

      Frequency

  • 2. 
    is the magnitude or intensity of the signal waveform measured in volts or amps.
    • A. 

      Period

    • B. 

      Amplitude

    • C. 

      Frequency

  • 3. 
    is the length of time in seconds that the waveform takes to repeat itself from start to finish.
    • A. 

      Period

    • B. 

      Amplitude

    • C. 

      Frequency

  • 4. 
    •Vectors, Phasors and Phasor Diagrams only apply to sinusoidal AC waveforms.
    • A. 

      True

    • B. 

      False

  • 5. 
    •All phasors are drawn rotating in an anticlockwise direction. All the phasors ahead of the reference phasor are said to be ___________ while all the phasors behind the reference phasor are said to be ___________.
  • 6. 
    • A. 

      357Ohms

    • B. 

      257Ohms

    • C. 

      157Ohms

  • 7. 
    A coil has a resistance of 30Ω and an inductance of 0.5H. If the current flowing through the coil is 4amps and its frequency is 50Hz. What will be the impedance?
    • A. 

      159.8Ohms

    • B. 

      259.8Ohms

    • C. 

      359.8Ohms

  • 8. 
    A coil has a resistance of 30Ω and an inductance of 0.5H. If the current flowing through the coil is 4amps and its frequency is 50Hz. What will be the voltage drop across resistor?
    • A. 

      140 V

    • B. 

      130 V

    • C. 

      120 V

  • 9. 
    A coil has a resistance of 30Ω and an inductance of 0.5H. If the current flowing through the coil is 4amps and its frequency is 50Hz. What will be the voltage drop across inductor?
    • A. 

      628 V

    • B. 

      528 V

    • C. 

      428 V

  • 10. 
    A coil has a resistance of 30Ω and an inductance of 0.5H. If the current flowing through the coil is 4amps and its frequency is 50Hz. What will be the supply voltage?
    • A. 

      620 V

    • B. 

      630 V

    • C. 

      640 V